Film-envelop



` 1. B. GARRETT.

FILM ENVELOP.

APPLlcATloN HLED AuG.24, 1920.

Patented 001. 11, 1921..,

UNITED l:STATES JOI-.IN GRRETT, OIE TROY, NEW" YORK.

To all `zio/Limi?, tl-may conce/m p Be it'known that'l, JOHN GARRETT, a

" citizen of 'f the United States, residing at Troy, in the county' of'Rensselaer and tate of New York7 have invented certain new and useful Improvements in Film-Envelops, or'

`which 4the following'is aspeoiiication, ref- A erence being Vhad therein to the accompanying d`rawing.`r l l Y "Ehe-invention*` relates to ilm envelops and has for its objectto provide a device oi this character sojconstructed that it may be disposed over. a' developing tank and members carried 4by ythe developing tank connected tov cross cords extending through theenvelop and'Y attached lto the ilm and forming ineans'wherebythe renvelop may be severed and the filindrawn into the developing tankiAlso to provide a member extending` upwardly from thefilm through the envelop and formingJ means whereby after the film has 'been drawn into the developing tank, it maybe removedfroin the tank, after the envelopjhas been discarded.

A further Aobject lis to' provide a ilm envelop or container particularly adapted for use in connection with a developing tank of the character set `iorth 'iii my application for patent yfiled August 24th, 1920, Serial No.405',739.' i

A urtherfobject" is'to provide a film envelop, particularly adaptedfor use in connection with a daylight developiiig'tank'and particularly in connection with X-ray lilms. The envelop comprises an inner and an outer envelop, one disposed within the other, the inner envelop being formed from a light proof material, preferably black and adapted to receive a film. Also to provide envelop cutting flexible members connected to the filmv and crossed and extending through the lower corners of the lilm envelop and through the corners of the outer envelop, the ends of said severing members being provided with members adapted to be engaged by members within the tank whereby a downward pull may be .imparted on the severing members Jfor severing the envelops and drawing the film into the developing tank.

A further object is to provide the inner envelop with a flap which may be disposed over the upper edgel of the outer envelop and forming means whereby the inner envelop may be held against downward movement during a severing operation.

f FILM-ENVELOP.

l l lSpecification of Letters Patent. 'Patented Oct. 11, 1921. Application' filed August 24, 1920. Serial No. 405,740.

Vith the above and other objects in` view the invention resides in the combination and l arrangement or' parts as hereinafter set roitli,shown in the drawings, described and claimed, it being understood that changes in the precise embodiment ofthe invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure 1 is a plan view of the envelop, parts being broken away to show the structure.

F ig. 2 is a vertical sectional view through a daylight ldeveloping tank illustrating the method whereby the film is drawn from the envelop.

Fig. 3 is a perspective view of the flexible member disposed'in the tank Aby means of whichthe lilm is diawn from the envelop.y

Fig. 4 is an enlarged sectionalview taken on line 4 4 of Fig. 1.

Referring to the drawings, the numeral 1 designates the outer envelop and 2 the inner envelop. Theinner envelop is made from a light resisting-material and is preferably black, while the outer envelop may be made from any kind of material. i The inner envelop 2 is provided with a iap 3, which flap during lin removing operation is disposed over the upper edge 4 of' the outer envelop as shown at 1, the purpose of which will presently appear'. The film 5, after an exposure, is connected to the cords 6 as at 7 by means of clips or in any other manner and is then placed in the inner envelop 3. The severing cords 6 are crossed as at 8 and extend through the corners 9 of the inner envelop 2, and extend downwardly through the open corners 10 ofthe outer envelop 1, said severing cords terminating in rings 11. TWhen it is desired to develop the ilm, the envelops are disposed in the upper V-shaped slot 12 of the developing tank 18 as shown in Fig. 2, with the rings 11 in the developing compartment 14, that is after the hooks 15 of the llexible withdrawing members 16 f have been hooked in the rings 11, this being severing cords 6 so that the lower ends of the envelops 1 and 2 may be severed and the film 5 drawn into the developing compartment let. During this withdrawing operation, the other hand of the operator is in l engagement with the flap 3 of the envelop 2 so as to prevent downward movement of the envelop 2.

Secured to the upper end of the film 5 as at 20 is a cord 21, which cord extends through an aperture 22 in the upper end of the envelop 2 and is of sufficient length that after the film has been drawn into the developing compartment 14 and the envelope discarded, the end 23 of thevstring 21 will extend above the Vshaped slot 12, thereby allowing the operator to withdraw the film from the developing compartment after a developing operation. The string 21 may be wound around the disk fastener 24C when the film is not being developed, thereby preventing the inner envelop 2 from coming out of the outer envelop 1.

From the above it will be seen that a film envelop is provided, which is so constructed that it may be used in connection with a daylight developing tank when it is desired to develop the film within the envelop.

The invention having been set forth what is claimed as new and useful is 1. A film container comprising an envelop adapted to receive a film, crossed envelo severing members disposed in the lower end of the envelop and having their ends connected to a film, said severing members having their other ends extending through the envelop and provided with attaching means.

2. A film container comprising an envelop adapted to receive a film, crossed flexible members disposed in the lower ends of the envelop and having their ends connected to a film, said flexible members having their other ends extending through the envelop and provided with attaching members and a fiexible member extending through the upper end of the envelop and having its end attached to the film.

3. A film container comprising an envelop disposed within an envelop, crossed flexible members disposed in the lower end of the inner envelop and having their ends connected to a film, the other ends of said crossed members extending through the corners of the inner and outer envelop and terminating in attaching members, a string ex tending through the inner envelop and having its end connected to the film within the inner envelop.

1. A film container comprising an envelop disposed within an envelop, crossed envelo severing members disposed in the lower enld of the inner envelop and having their ends connected to a film, the other ends of Said crossed members extending through opposite corners of the inner and outer envelops and terminating in attaching members.

5. A film container comprismg an envelop adapted to receive a lm, a pliable member .disposed in the lower end of the envelop and having its end connected to the film adjacent one side thereof, the other end of said pliable member extending through the opposite corner of the envelop and terminating in an attaching member.

6. A film container comprising an envelop disposed within an envelop, pliable members connected to the film adjacent its sides, said pliable members extending through the corners of the envelops at opposite points to theii` points of attachment to the film, and a pliable member connected to the upper end of the film and extendin through the upper end of the inner enve op.

In testimony whereof I hereunto afx my signature.

` JOHN B. GARRETT. 

